Covellite Vs Sylvite
Origin
Mexico
Mexico, Canada
Color
Blue, Blue, Black
Colorless, White, Blue, Red, Reddish, Brownish
Streak
Grey, Black, gray
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
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Deities
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Not to wear with
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Powers
Not Available
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Planetary
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Talisman
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Tenacity
Flexible
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
1.993
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, Brittle
Cleavage
Perfect on {0001}
Perfect on [100], [010], [001]
Mohs Hardness
Not Available
2.5
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Not Available
Pleochroism
Marked
Visible in colored crystals
Dispersion
Not Available
Not Available
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Not Available
Refractive Index
1.45-2.62
1.4903
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
Not Available
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Clarity
OpaqueAnthony et al
Not Available
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Covellite Vs Sylvite Fracture
Fracture is an important parameter when you compare Covellite and Sylvite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Sylvite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Sylvite fracture is Brittle and Uneven.
Covellite Vs Sylvite Luster
A primary knowledge about Covellite vs Sylvite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Covellite exhibits Resinous luster. Sylvite, on other hand, exhibits Vitreous luster.